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m4n8tpr8b

Joined: Jul 6, 2024

Last seen: Dec 8, 2024

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- m4n8tpr8b replied to the thread How big can 'ultramassive' black holes get? Scientists may have the answer.
  
  You quote the researcher defining supermassive and ultramassive black holes as more than 10 million resp. 10 billion solar masses, but...
  
  Dec 8, 2024
- m4n8tpr8b replied to the thread Cataclysmic' solar storm hit Earth around 2687 years ago, ancient tree rings reveal.
  
  There is an 11,400-year reconstruction of sunspot numbers based on tree ring & radiocarbon data which doesn't resolve solar cycles but...
  
  Nov 30, 2024
- m4n8tpr8b replied to the thread Cataclysmic' solar storm hit Earth around 2687 years ago, ancient tree rings reveal.
  
  You copied a mistake from the UofA press release. However, as correctly told in the actual scientific paper, there have been two more...
  
  Nov 29, 2024
- m4n8tpr8b replied to the thread Scientists find highest energy cosmic ray electrons ever seen.
  
  Someone along the way probably mixed up parsecs & lightyears.
  
  Nov 26, 2024
- m4n8tpr8b reacted to MHF's post in the thread Scientists find highest energy cosmic ray electrons ever seen with Like.
  
  I was not aware of any stars (burning or dark) 2 lightyears from the solar system. Proxima Centauri is double that distance.
  
  Nov 26, 2024
- m4n8tpr8b reacted to stanwaterman's post in the thread Scientists find highest energy cosmic ray electrons ever seen with Like.
  
  Rest-mass is constant, the mass at rest! The apparent mass increases with speed not acceleration although if you are accelerated you do...
  
  Nov 26, 2024
- m4n8tpr8b replied to the thread Scientists find highest energy cosmic ray electrons ever seen.
  
  40 TeV for an electron with a rest mass of 0.511 MeV, that's a Lorentz factor of 7.8 ×10^7 (meaning it's relativistic mass was 78...
  
  Nov 26, 2024
- m4n8tpr8b replied to the thread James Webb Space Telescope 'pushed to its limits' to see most distant galaxies ever.
  
  Galaxy formation is a rather uncertain topic because it involves dark matter, which we still cannot identify, and can only guess its...
  
  Nov 26, 2024
- m4n8tpr8b replied to the thread James Webb Space Telescope 'pushed to its limits' to see most distant galaxies ever.
  
  Your caption for the diagram with ten sub-diagrams starts "Five candidate galaxies identified by the JWST". Actually, the image shows...
  
  Nov 26, 2024
- m4n8tpr8b replied to the thread Supermassive black holes prefer to eat from wobbly plates.
  
  Unfortunately this has become way too common on this site...
  
  Nov 11, 2024
- m4n8tpr8b reacted to billslugg's post in the thread Supermassive black holes prefer to eat from wobbly plates with Like.
  
  "whether incredibly bright, or "ultraluminous," accretion disks also wobble, or "process,"" It's precess, not process. Writer not...
  
  Nov 11, 2024
- m4n8tpr8b replied to the thread In a cosmic horror show, this zombie star survived a supernova explosion.
  
  The part in parentheses is the article author's extrapolation, based on a misunderstanding of the research, which is somewhat...
  
  Oct 24, 2024
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